Water backflow maintenance requires a decision on whether to handle minor system checks yourself or hire a certified professional. A properly functioning backflow prevention system is essential to keeping contaminants out of your water supply. While some homeowners may consider DIY maintenance, others may prefer professional servicing to ensure compliance with local regulations.
Below, we compare both options to help you decide.

DIY Water Backflow Maintenance: Pros and Cons
✅ Pros of DIY Backflow Maintenance
✔ Cost Savings – Performing basic inspections and cleaning components yourself can save money on service calls.
✔ Routine Monitoring – Checking for visible leaks, corrosion, or pressure fluctuations allows you to catch early warning signs.
✔ Convenience – Homeowners and business owners can inspect their backflow preventers at their own schedule.
❌ Cons of DIY Backflow Maintenance
✖ Lack of Certification – Most municipalities, including Mississauga and the GTA, require certified professionals to perform annual backflow testing.
✖ Limited Troubleshooting – Without the right equipment, diagnosing internal valve failures or pressure irregularities can be challenging.
✖ Potential Health Risks – Improper maintenance may lead to water contamination, affecting drinking water safety.
Professional Water Backflow Maintenance: Pros and Cons
✅ Pros of Hiring a Professional
✔ Compliance with Local Regulations – Licensed plumbers are required for annual backflow testing and certification.
✔ Advanced Diagnostics – Professionals use specialized tools to detect leaks, pressure drops, and valve failures.
✔ Guaranteed Water Safety – Certified technicians ensure full system integrity, reducing the risk of contamination.
✔ Long-Term Cost Savings – Preventative maintenance helps avoid expensive repairs or regulatory fines.
❌ Cons of Hiring a Professional
✖ Service Costs – Professional inspections require an upfront investment, but they prevent costlier issues down the road.
✖ Appointment Scheduling – You may need to wait for an available service slot, especially during peak seasons.
DIY vs. Professional: Which Option is Best for You?
Factor |
DIY Maintenance |
Professional Service |
---|
Cost |
Lower upfront cost |
Higher upfront, long-term savings |
Regulatory Compliance |
Not valid for official testing |
Fully compliant with local laws |
Risk of Contamination |
Higher if done incorrectly |
Minimal risk with expert servicing |
Time Investment |
Requires personal effort |
Quick, efficient service |
Effectiveness |
Limited to basic checks |
Full system analysis and repairs |
🔹 Choose DIY for basic inspections and monitoring, such as checking for leaks or pressure changes.
🔹 Hire a professional if your system requires annual testing, repairs, or compliance certification in Mississauga and the GTA.
Frequently Asked Questions (FAQs)
1. How often should my backflow prevention system be tested?
Mississauga and GTA regulations require annual testing by a certified professional to ensure compliance.
2. Can I legally test my own backflow prevention device?
No, only licensed backflow testers can perform official backflow testing and certification.
3. What are the signs that my backflow preventer needs maintenance?
Look for low water pressure, discolored water, leaks, or unusual noises from your plumbing system.
4. How much does professional backflow testing cost?
Costs vary based on location and system complexity, but most services range from $150–$500 per test.
5. What happens if I don’t maintain my backflow preventer?
Neglecting maintenance can lead to water contamination, health risks, plumbing damage, and legal penalties.
Need Professional Backflow Maintenance in Mississauga or the GTA?
At Select Plumbing and Heating, our certified technicians provide expert water backflow testing, repairs, and installation services in Mississauga. We ensure your system stays compliant, efficient, and safe.
📞 Call us today to schedule a service!